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| |  DSH 398
( R- z9 k6 E1 V* D. D% O, f, U) m# m: o( Y5 O
| Protection against ingress of water: b( i0 B( a3 V! O' Z. V
| Figures 17 & 19/ g7 o4 c- Z6 i u' \% U. v
| 60238(ed.7) & 61184(ed.2)0 ~0 ^& Q+ u0 {6 F
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6 m; t7 u' e% ?" t6 MQuestion:
_2 C1 k% r J5 Z, xEquipment to check protection against drops of liquid - Figure 19 of IEC 61184-Bayonet lampholders and Figure 17 of IEC 60238-Edison screw lampholders - The holes of the test apparatus tend to be blocked frequently. Additional expenses and resources
5 Z, m( A$ _9 Y8 b. qare required to clear the blockage. Is there a better way to simulate the rainfall?
9 ?0 U' J, j4 W! _Decision:
5 X" G6 K u3 P( m, s9 [To align the requirement to provide protection against drops of liquid (Figure 19-IEC 61184 and Figure 17-IEC60238) with the test device to verify protection against vertically falling water drops (drip box - Figure 3a - IEC 60529), all nozzles shall be cleaned after
: z2 {. w' `5 v7 X0 weach test.9 W/ X2 q l1 \& T0 T3 M" a1 l
# Z3 C+ v) Q% i# @
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发表于 2012-9-5 17:05
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